xref: /titanic_51/usr/src/head/schedctl.h (revision ba3594ba9b5dd4c846c472a8d657edcb7c8109ac)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate  * with the License.
87c478bd9Sstevel@tonic-gate  *
97c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate  * and limitations under the License.
137c478bd9Sstevel@tonic-gate  *
147c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate  *
207c478bd9Sstevel@tonic-gate  * CDDL HEADER END
217c478bd9Sstevel@tonic-gate  */
227c478bd9Sstevel@tonic-gate /*
23*ba3594baSGarrett D'Amore  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
24*ba3594baSGarrett D'Amore  *
257c478bd9Sstevel@tonic-gate  * Copyright 1996-2003 Sun Microsystems, Inc.  All rights reserved.
267c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
277c478bd9Sstevel@tonic-gate  */
287c478bd9Sstevel@tonic-gate 
297c478bd9Sstevel@tonic-gate #ifndef	_SCHEDCTL_H
307c478bd9Sstevel@tonic-gate #define	_SCHEDCTL_H
317c478bd9Sstevel@tonic-gate 
327c478bd9Sstevel@tonic-gate #ifdef __cplusplus
337c478bd9Sstevel@tonic-gate extern "C" {
347c478bd9Sstevel@tonic-gate #endif
357c478bd9Sstevel@tonic-gate 
367c478bd9Sstevel@tonic-gate #include <sys/schedctl.h>
377c478bd9Sstevel@tonic-gate 
387c478bd9Sstevel@tonic-gate typedef sc_public_t schedctl_t;
397c478bd9Sstevel@tonic-gate 
407c478bd9Sstevel@tonic-gate extern void yield(void);
417c478bd9Sstevel@tonic-gate 
427c478bd9Sstevel@tonic-gate #define	schedctl_start(p)					\
437c478bd9Sstevel@tonic-gate 		(void) (((p) == NULL)? 0 :			\
447c478bd9Sstevel@tonic-gate 		((((schedctl_t *)(p))->sc_nopreempt = 1), 0))
457c478bd9Sstevel@tonic-gate 
467c478bd9Sstevel@tonic-gate #define	schedctl_stop(p)					\
477c478bd9Sstevel@tonic-gate 		(void) (((p) == NULL)? 0 :			\
487c478bd9Sstevel@tonic-gate 		((((schedctl_t *)(p))->sc_nopreempt = 0),	\
497c478bd9Sstevel@tonic-gate 		(((schedctl_t *)(p))->sc_yield? (yield(), 0) : 0)))
507c478bd9Sstevel@tonic-gate 
517c478bd9Sstevel@tonic-gate /*
527c478bd9Sstevel@tonic-gate  * libsched API
537c478bd9Sstevel@tonic-gate  */
547c478bd9Sstevel@tonic-gate schedctl_t	*schedctl_init(void);
557c478bd9Sstevel@tonic-gate schedctl_t	*schedctl_lookup(void);
567c478bd9Sstevel@tonic-gate void		schedctl_exit(void);
577c478bd9Sstevel@tonic-gate 
587c478bd9Sstevel@tonic-gate #ifdef __cplusplus
597c478bd9Sstevel@tonic-gate }
607c478bd9Sstevel@tonic-gate #endif
617c478bd9Sstevel@tonic-gate 
627c478bd9Sstevel@tonic-gate #endif	/* _SCHEDCTL_H */
63